<script setup lang="ts">
let a: number = 3
let b = a
console.log(b)
</script>

<template>
  <div class="div">
    我倒是app
    <h1>你是傻逼吗</h1>
  </div>
</template>

<style scoped lang="scss">
.div {
  color: aqua;

  h1 {
    background: green;
  }
}
</style>
